I've been using 89 octane for one year now. Price is now close to $5 p/g. Am thinking about using 87 instead. Have any of you used 87 from new to current. Everything else I own is on 87 including 454 Chevy motorhome. Thanks
I have only used 87 in my 19 and 21 ram not many miles on them, but never had a fuel issue/power issue. I hear the ram tick once in a while, which everyone says the hemi is known for? I think ram recommended 89, but I think it says 87 is fine?I've been using 89 octane for one year now. Price is now close to $5 p/g. Am thinking about using 87 instead. Have any of you used 87 from new to current. Everything else I own is on 87 including 454 Chevy motorhome. Thanks
Maybe I will try putting 91 octane gas in my 3.21 rear differential, and 75W-90 gear oil in my engine and see if that can squeak a few more mpgs out of my truck.Yea, read into it what you want but the manual says the truck was designed to run on gas between 87 and 89. If it runs good, does not ping and carry on (i.e. you got a decent motor that is tuned properly and have the correct 3:92 gears) then using 87 because it works will be fine. Now if you have inferior 3:21 gears () and your tune is all out of whack then no gas that is going to help you. You are just putting a bandaid on an open laceration at that point.
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so it's probably a wash since you are paying higher for the 89. In fact, you might even be losing money on this deal!I get about 20-30 more miles off a tank of 89 then 87 in my 20 rebel . 16.8- 17mpg a average with 87 and 18-18.3mpg with 89
So you average around 1.3 mpg better with 89.I get about 20-30 more miles off a tank of 89 then 87 in my 20 rebel . 16.8- 17mpg a average with 87 and 18-18.3mpg with 89
You run E85 in a hemi without mods?I run 85, seems fine, but I'm no enginerd.
He means 85 octane. That's regular gas at high altitude.You run E85 in a hemi without mods?